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Preparation method of manganese-zinc soft magnetic ferrite material

A manganese-zinc soft magnet and ferrite technology, which is applied in the field of soft ferrite, can solve the problems of unstable soft ferrite material performance, large difference in raw material properties, and easy volatilization of raw materials, and achieve low cost, good temperature characteristics, good chemical stability

Inactive Publication Date: 2017-05-24
TRUSYN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the physical properties of the raw materials in the preparation process of manganese-zinc soft ferrite are relatively large, and it is difficult to mix evenly, which leads to unstable properties of the soft ferrite material. At the same time, the raw materials are volatile during the preparation process. To solve the problem of environmental pollution, the present invention dissolves the raw materials with hydrochloric acid, combines the free metal ions with the silane coupling agent, promotes the materials to be fully mixed, and then uses n-butyl titanate and chromium trioxide as auxiliary agents. During the process, the growth of grains is promoted, the activity is increased, and then calcium oxide, strontium carbonate and other substances are added to reduce the sintering temperature, promote the growth of grains in the material, make the distribution of crystal force uniform, promote the densification of the material, and inhibit the volatilization of the material. Manganese-zinc soft magnetic ferrite material prepared by increasing the internal resistivity of the grain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] In parts by weight, 50 parts of iron oxide, 20 parts of manganese carbonate, 19 parts of hydrochloric acid with a mass fraction of 3%, 10 parts of zinc oxide and 3 parts of gamma-aminopropyltriethoxysilane were put into a ball mill, According to the ball-to-material ratio of 10:1, ball mill at 200r / min for 4 hours, collect the ball-milled mixture, and put it in a drying oven at 100°C for 10 hours to collect the dried matter; put the above-mentioned dried matter into a pulverizer for crushing, and pass through an 80-mesh sieve , collect the sieved particles, put the sieved particles, 7% triethanolamine by sieved particle mass, 3% n-butyl titanate by sieved particle mass and 1% chromium trioxide by sieved particle mass into the mixer Stir evenly, then put the stirred mixture into a calciner, set the temperature at 800°C, calcinate for 1 hour, cool to room temperature with the furnace, and collect the calcined product; in parts by weight, take 60 parts of the above calcined...

example 2

[0020]In parts by weight, 60 parts of iron oxide, 24 parts of manganese carbonate, 24 parts of hydrochloric acid with a mass fraction of 3%, 13 parts of zinc oxide and 7 parts of gamma-aminopropyltriethoxysilane were put into a ball mill, According to the ball-to-material ratio of 10:1, ball mill at 200r / min for 6 hours, collect the ball-milled mixture, and put it in a drying oven at 100°C for 12 hours to collect the dried matter; put the above-mentioned dried matter into a pulverizer for crushing, and pass through an 80-mesh sieve , collect the sieved particles, put the sieved particles, 9% triethanolamine by sieved particle mass, 5% n-butyl titanate by sieved particle mass, and 2% chromium trioxide by sieved particle mass into the mixer Stir evenly, then put the stirred mixture into a calciner, set the temperature at 900°C, calcinate for 2 hours, cool to room temperature with the furnace, and collect the calcined product; in parts by weight, take 65 parts of the above calcine...

example 3

[0023] In parts by weight, 55 parts of iron oxide, 22 parts of manganese carbonate, 22 parts of hydrochloric acid with a mass fraction of 3%, 12 parts of zinc oxide and 5 parts of gamma-aminopropyltriethoxysilane are put into a ball mill, According to the ball-to-material ratio of 10:1, ball mill at 200r / min for 5 hours, collect the ball-milled mixture, and put it in a drying oven at 100°C for 11 hours to collect the dried matter; put the above-mentioned dried matter into a pulverizer for crushing, and pass through an 80-mesh sieve , collect the sieved particles, put the sieved particles, triethanolamine with 8% sieved particle mass, n-butyl titanate with 4% sieved granule mass and chromium trioxide with 2% sieved granule mass in the mixer Stir evenly, then put the stirred mixture into a calciner, set the temperature at 850°C, calcinate for 2 hours, cool to room temperature with the furnace, and collect the calcined product; in parts by weight, take 63 parts of the above calcin...

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Abstract

The invention discloses a preparation method of a manganese-zinc soft magnetic ferrite material, and belongs to the technical field of soft magnetic ferrite. The preparation method comprises the steps that ferric oxide, manganese carbonate, hydrochloric acid and the like are put into a ball mill for ball milling; a ball milling mixture is collected, dried in a drying oven and then crushed in a crusher to obtain sieving particles; uniform stirring with triethanolamine, tetrabutyl titanate and the like is performed; the mixture is calcined; a calcined product, strontium carbonate, columbic anhydride, calcium oxide and zirconium boride are subjected to ball milling treatment, and then fused and milled in an electric furnace; a milling mixture is uniformly mixed with a polyvinyl alcohol solution; spray drying is performed; a dried product is put into a mold, pressed by a pressing machine, and calcined in a calcining furnace; and a calcined product is collected to obtain the manganese-zinc soft magnetic ferrite material. The manganese-zinc soft magnetic ferrite material prepared by the method has higher purity and stable performance.

Description

technical field [0001] The invention discloses a preparation method of a manganese-zinc soft ferrite material, which belongs to the technical field of soft ferrite. Background technique [0002] Soft ferrite material is a ferrite material that is easily magnetized and demagnetized under the action of a weak magnetic field. As a material with early development, many types and wide applications, soft ferrite has become one of the more important products in economic development. In recent years, with the development of electronic information technology such as computer network technology, communication technology and power technology, the demand for soft ferrite materials with excellent performance in traditional fields has been increasing, and the application has also been extended to other fields. It is an indispensable basic material for communication equipment, computers, household appliances, automotive electronics, power supply units, instrumentation, and aerospace indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/38C04B35/622C04B35/626C04B35/63C04B35/632C04B35/634
CPCC04B35/2633C04B35/622C04B35/62615C04B35/62645C04B35/62655C04B35/6303C04B35/632C04B35/63416C04B2235/3208C04B2235/3213C04B2235/3241C04B2235/3251C04B2235/3262C04B2235/3284C04B2235/3813
Inventor 宋昊李雪晴
Owner TRUSYN CHEM TECH
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